| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 times | 1877 |
81.8%
|
| 2 | 1 or 2 times | 324 |
14.1%
|
| 3 | 3 to 9 times | 63 |
2.7%
|
| 4 | 10 or more times | 32 |
1.4%
|
| Sysmiss | 31 |